Improvement in watch-case springs



N. J. FELIX.

WATCH-CASE SPRING.

Patented Sept. 19, 1876.

NFETERS. FHOTQ-LITI'IOGRAPHER, wAsmysTon, 0 c

UNITED STATES PATENT CFFIGE.

NUMA J. FELIX, OF NEW YORK, N. Y.

IMPROVEMENT IN WATCH-CASE SPRINGS.

Specification forming part of Letters Patent No. 182.360, datedSeptember 19, 1876; application filed August 28, 1876.

To all whom it may concern:

Be it known that I, NUMA J. FELIX, of the city, county, and State of NewYork, have invented a new and Improved Watch Case Spring, of which thefollowing is a specification:

In the accompanying drawing, Figure 1 represents a side view, with partbroken off, of a watch-case with my improved spring. Fig. 2 is a detailvertical transverse section of the same on line 0 0, Fig. 1; and Fig. 3is a bottom View of the spring detached from the case.

Similar letters of reference indicate correspondin g parts.

The object of my invention is to provide for watch-manufacturers andwatchinakers an improved spring, that may be fitted with but littletrouble into any case, so as to facilitate the repairing of brokensprings by any watchmaker in a short time; and the invention consists ofa bearing or bridge piece, with downward-bent end posts or lugs thatbear in perforations the steel spring, the posts being readily recessedto fit any case.

In the drawing, A represents the hearing or bridge-piece, thatcorresponds to the circumference of the case, and supports, indownwardbent perforated end posts or lugs a, the watch-spring B, whichslides in the posts to be adjusted by its upward curved and fiattenedend to the hinged lid of the case. The bridge-piece A has a number ofsmall perforations, by which it may be secured, in the usual manner, tothe case by a fastening-screw, d, the bridge being adapted by the holesto the varying positions of the screws in difierent cases. The posts aare, with little trouble, fitted to the seat of the case, as shown inFig. 2, the lower edges of the post requiring but little cutting, so asto enable any intelligent mechanic to put the spring into the watchcasein quick and reliable manner without necessitating the sending back ofthe case to the case-manufacturer to have the spring fitted in.

I am aware that solid supporting-pieces that are fitted to the case, andretain the spring in perforated end logs, are in use, and I do not claimthe same; but as the lower part or seat of the solid support has to berecessed along its entire length when fitted to the case, which is verylaborious, and endangers the lugs being cut and weakened, thearrangement of my bridge-piece that combines with the posts thefunctions of the lugs, and admits their ready and substantial fitting,is, for practical purposes, in every respect preferable and moreadvantageous.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The combination, with a sliding and adjustable watchcase spring, of abearing or bridge piece, that is secured to the case and fitted bydownward-extending perforated end posts or lugs to the seat of the case,substantially in the manner and for the purpose specified.

NUMA J. FELIX.

Witnesses:

PAUL GoEPEL, O. SEDGWICK.

